This sucks lmao. The protagonist has no character traits besides being a genuinely worthless loser, and the girlfriend doesn't have a personality beyond endlessly putting up with his garbage and being verbally abusive.
They both suck, but the author sucks the most for having this lame fantasy of having a girlfriend who mothers you while insulting you.
If you seriously identify with the protagonist, you need to look in the mirror and turn your life around. Go clean your room at least.